Draft appliance for locomotives



a. J. HUESUS. DRAFT APPLIANCE FOR LOCOMOTIVES.

APPUCATON HLfD DEC. 9 iQIQ 1,373,735: I Patented Apr. 5, 1921.

",llllllllllilm-b WITNESSES gig/W0]? A TTOBME rs UNITED STATES GEORGE J. HUESTIS, OF BELLEVILLE, ONTARIO, CANADA.

V DRAFT APPLIANCE FOR LOCOMOTIVES.

Specification of Letters Patent.

Patented Apr. 5, 1921.

iltpplication filed December 9, 1919. Serial No. 343,637.

ToaZZ w/wmz't may concern:

Be it known that I, GEORGE J. Huns'ris, a citizen of Canada, and a resident of Belleville, in the county of Ontario, Province of Untario, and Dominion of Canada, have invented a new and Improved Draft Appliance for Locomotives, of which the following is a full, clear, and exact description.

This invention relates to improvements in draft appliances for locomotives, and more particularly to improvedmeans for controlling the discharge of steam from the exhaust nozzle in the smoke box, an object of the invention being to provide an attachment for the exhaust nozzle which will permit the steam to be deflected through opposite sides of the center or allow the draft to go straight up through the stack in ac-.

cordance with the desire of the engineer.

It frequently happens, particularly in starting and in taking heavy grades, that it is desirable to increase the draft and to accomplish this I provide an attachment on the exhaust nozzle in the smoke box which is provided with two deflecting bars triangular in cross-section and of different widths and provide means whereby either of these deflecting bars can be positioned centrally across the end of the nozzle or move to a position so that the nozzle is free and can discharge in a straight line in an upward direction. When the bars are across the nozzle, the steam is deflected laterally to increase the draft. This is desirable, as above stated, in starting and in taking heavy grades, but is not desirable under ordinary conditions because of the fact that it causes an increased. fuel consumption. It is therefore the object of my invention to provide means whereby the exhaust of steam in the smoke box can be so directed or controlled as to give the desired draft in accordance with the work to be done.

With these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a View partly in elevat on and partly in vertical longitudinal section through the front end of the smoke box .of a locomotive;

Fig. 2 is an enlarged sectional plan view;

Fig. 3 isan enlarged view in side eleva- 131011 lllustratlng my improved attachment on the exhaust nozzle; and

Fig. 41 is a view in crosssection on the line 4l-& of Fig. 2.

1 represents the front end of a locomotive having the ordinary smoke box 2 therein. 3 is the steam exhaust nozzle in the bottom of the smoke box which discharges upwardly through the petticoat pipe a into the stack 5. On the nozzle 3 I secure a ring 6 preferably by means of bolts 7 and support on this ring 6 a pivoted frame 8. The frame 8 is pivotally connected to the ring 6 by means of a pivot pin or bolt 9 and is-prov ded with an arm 10 which is connected by a rod 11 with a bell crank lever 12. This bell crank lever 12 is connected by a rod 13 with an operating leverl of any approved construction in the cab of the locomotive.

lVhile l have illustrated a single form of operating means, it is obvious that I may employ various forms of mechanism to manually move the frame 8.

The frame 8 comprises two deflector bars 15 and 16 located at right angles to each other and connected by a curved bar 17. This bar 17 has an inwardly projecting lip 18 which is movable in a groove 19 in the ring 6 so as to hold the frame against upward movement dueto pr ssure of steam.

The bars 15 and 16 are of general triangular shape in cross-section; that is, they are provided with flaring sides which act to deflect the steam laterally and have sharp lower edges offering a minimum of resist ance to the passage of steam. The bar 15 is slightly larger than the bar 16 and hence, by positioning either of these bars the desired lateral deflection, of the steam can be had. When the frame 8 is moved to a position so that neither of the bars 15 or 16' are over the outlet end of the nozzle, the steam has a free unobstructed passage upwardly.

It is therefore possible with my improved attachment to permit the steam to be deflected as desired or to be free from any defleeting action whatever, and as the bars 15 and 16 extend longitudinally of the locomotive when in operative position the steam will be deflected laterally to increase the draft, as will be readily understood.

Various slight changes may be made in the general form and arrangement of parts described without departing from the invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. The combination with a locomotive smoke box, and an exhaust nozzle therein, of a movable deflector adapted to be positioned across the outer end of the' nozzle, said deflector pivotally mounted and movable transversely across the outlet end of the exhaust nozzle.

2. The combination with a locomotive smoke box, and an exhaust nozzle therein, of a bar movably mounted and adapted'to be positioned across the outlet end of the nozzle, said bar pivotally mounted andmovable transversely across the outlet end of the exhaust nozzle.

3. The combination with a locomotive smoke box, and an exhaust nozzle therein, of a bar movably mounted and adapted to be positioned across the outlet end of the nozzle, said bar pivotally mounted and movable transversely across the outlet end of the exhaust nozzle, said bar of triangular shape in cross-section having a sharp lower edge and tapering side.

4. The combination with a locomotive smoke box, and anexhaust nozzle therein, of a frame movable above the nozzle, a pair of deflector bars on the frame at right angles to each other and of different cross-sectional areas, said bars triangular in crosssection, means for moving the frame to position either of said'bars across the outlet end of the nozzle or position the frame so that neither of the bars will be across the outlet end of the nozzle.

5. The combination with a locomotive smoke box, and an exhaust nozzle therein, of a ring secured on the nozzle and having a groove in its edge, a frame pivotally connected to the ring and comprising two deflector bars at right angles to each other, and a curved bar connecting said first-mew tioned bars, an inwardly projecting lip on the curved bar movable in the said groove, an arm projecting from the frame, and

means operatively connected to the arm,

whereby either of said first-mentioned bars may be positioned across the opening in the ring and the outlet of the nozzle.

GEORGE J. HUESTIS. 

